<template>
<div class='shelf-item-category'>
  <div class="shelf-item-category-list" v-if="data.itemList.length > 0">
    <div class="shelf-item-category-item" v-for="(item, index) in data.itemList" :key="index">
      <img class="shelf-item-category-img" :src="item.cover">
    </div>
  </div>
  <div class="shelf-item-category-bg" v-else>
    <span class="icon-book2"></span>
  </div>
</div>
</template>

<script>

export default {
  props: {
    data: Object
  },
  mounted () {
    console.log(this.data)
  }
}
</script>
<style lang='scss' scoped>
 @import "../../assets/styles/global";
 .shelf-item-category{
   width: 100%;
   height: 100%;
   overflow: hidden;
   .shelf-item-category-list {
    display: flex;
    flex-flow: row wrap;
    align-content: flex-start;
    width: 100%;
    height: 100%;
    padding-top: px2rem(5);
    box-sizing: border-box;
    .shelf-item-category-item {
      flex: 0 0 33.33%;
      width: 33.33%;
      height: 33.33%;
      box-sizing: border-box;
      &:nth-child(3n+1) {
        padding: 0 px2rem(2.5) px2rem(5) px2rem(5);
      }
      &:nth-child(3n+2) {
        padding: 0 px2rem(2.5) px2rem(5) px2rem(2.5);
      }
      &:nth-child(3n+3) {
        padding: 0 px2rem(5) px2rem(5) px2rem(2.5);
      }
      .shelf-item-category-img {
        width: 100%;
        height: 100%;
      }
    }
  }
   .shelf-item-category-bg {
    width: 100%;
    height: 100%;
    font-size: px2rem(30);
    @include center;
    color: #cccccc;
  }
 }
</style>
